非线性YAl3(BO3)4单晶在266纳米处的峰值功率为240千瓦。

240 kW peak power at 266 nm in nonlinear YAl3(BO3)4 single crystal.

作者信息

Ilas Simon, Loiseau Pascal, Aka Gérard, Taira Takunori

出版信息

Opt Express. 2014 Dec 1;22(24):30325-32. doi: 10.1364/OE.22.030325.

DOI:10.1364/OE.22.030325

Abstract

We report the fourth harmonic generation at 266 nm using a type I YAl3(BO3)4 (YAB) single crystal from a Q-switch microchip laser Nd:YAG/Cr⁴⁺:YAG frequency doubled with a LiB3O5 (LBO) crystal. 240 kW peak power at 266 nm corresponding to a mean conversion efficiency of 12.2% from 532 to 266 nm has been obtained with a 2.94 mm thick YAB crystal. The influences of optical homogeneity and absorption on the conversion efficiency are discussed.

摘要

我们报道了利用一块I型YAl3(BO3)4（YAB）单晶，通过Q开关微芯片激光器Nd:YAG/Cr⁴⁺:YAG与LiB3O5（LBO）晶体倍频产生266 nm的四谐波。使用一块2.94 mm厚的YAB晶体，在266 nm处获得了240 kW的峰值功率，对应于从532 nm到266 nm的平均转换效率为12.2%。讨论了光学均匀性和吸收对转换效率的影响。